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Finding the Fourth Proportional to 477,278.70, 658,631.97 and 259,480.50

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Solution

The fourth proportional to 477,278.70, 658,631.97 and 259,480.50 is: 358,076.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,278.70 : 658,631.97 = 259,480.50 : x
  2. Step 2: Convert to fraction form
    477,278.70/658,631.97 = 259,480.50/x
  3. Step 3: Cross multiply
    477,278.70x = 658,631.97 × 259,480.50
  4. Step 4: Simplify right side
    477,278.70x = 170,902,152,891.59
  5. Step 5: Solve for x
    x = 170,902,152,891.59/477,278.70
  6. Step 6: Final answer
    x = 358,076.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.